Trump campaign spokesperson: He will concede if he loses

Donald Trump campaign spokesperson Jason Miller said the Republican presidential candidate will concede if he loses the election fair and square.

“Short of rampant, widespread voter fraud, of course, if the other candidate wins, we'll uphold that,” Miller told CNN’s Jake Tapper on Wednesday ahead of the third presidential debate. “ I mean, that's — that's very clear. But again, our goal leading up to then is to make sure that we have ballot box integrity, voter integrity, and I think that's common sense. "

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Miller’s comments come as Trump has been aggressively pushing his unsubstantiated warnings that the November election will be “rigged,” asserting that Hillary Clinton will steal the presidency and setting up the possibility that he will contest the results.

Trump’s campaign manager Kellyanne Conway told MSNBC earlier on Wednesday that she does not think the election will be rigged, but she suggested she believes there may be a larger media conspiracy working against the Republican candidate.

The White House and Democrats have strongly pushed back against Trump's warnings.

President Barack Obama commented on the claim Tuesday from the Rose Garden, saying, "No serious person out there who would suggest somehow that you could even rig America's elections." He added that Trump was "whining before the game is even over."